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Wu C, Yu Y, Zhao T, Xie H. Bidirectional causality between idiopathic sudden sensorineural hearing loss and depression: a Mendelian randomization study. Sci Rep 2024; 14:14932. [PMID: 38942925 PMCID: PMC11213911 DOI: 10.1038/s41598-024-65966-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024] Open
Abstract
Idiopathic Sudden Sensorineural Hearing Loss (ISSHL) is a sudden onset, unexplained sensorineural hearing loss. Depression is a common mental disorder and a leading cause of disability. Here, We used a two-sample Mendelian randomization approach using pooled statistics from genome-wide association studies of ISSHL (1491 cases, 196,592 controls) and depression (23,424 cases, 192,220 controls) in European populations. This study investigated the bidirectional relationship between single nucleotide polymorphisms associated with depression and ISSHL using inverse variance weighting.Additional sensitivity analyses, such as Mendelian randomization-Egger (MR-Egger), weighted median estimates, and leave-one-out analysis, were performed to assess the reliability of the findings. Significant causal association between genetic susceptibility to ISSHL and depression in a random-effects IVW approach (OR = 1.037, 95% CI = 1.004-1.072, P = 0.030). In contrast, genetic depression was not risk factors for ISSHL (OR = 1.134, 95% CI = 0.871-1.475, P = 0.350). After validation by different MR methods and the sensitivity analysis, all of the above results are consistent. The evidence we have gathered suggests a causal relationship between ISSHL and depression. The presence of the former induces or further exacerbates the latter, whereas a similar situation does not exist when the latter is an influencing factor.
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Affiliation(s)
- Chuanyu Wu
- Department of Otorhinolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
- College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Ya Yu
- Department of Otorhinolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
- College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Tongtong Zhao
- Department of Otorhinolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
- College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Hui Xie
- Department of Otorhinolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China.
- College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
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Hemphill L, Valenzuela Y, Luna K, Szymkowicz SM, Jones JD. Synergistic Associations of Depressive Symptoms and Aging on Cognitive Decline in Early Parkinson’s Disease. Clin Park Relat Disord 2023; 8:100192. [PMID: 36968523 PMCID: PMC10034501 DOI: 10.1016/j.prdoa.2023.100192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 02/20/2023] [Accepted: 03/08/2023] [Indexed: 03/13/2023] Open
Abstract
Objective Parkinson's disease (PD) is the second most common progressive neurodegenerative disorder. About 40%-50% of PD patients experience depression, making it one of the most common neuropsychiatric disturbances in PD. Cognitive deficits (e.g., difficulties with memory, attention) are an additional common complication in PD. Past studies among healthy aging individuals suggest that depression is a risk factor for cognitive decline, and the risk increases with older age. This study aims to examine the association between depressive symptoms on cognitive decline as a function of age among patients with PD. It is hypothesized that older PD patients with more severe depressive symptoms will be at greater risk of cognitive decline than their younger or less depressed counterparts. Methods Four hundred and eighty-seven newly diagnosed patients with PD, were assessed for depression and cognition over a five-year period. Participants completed neuropsychological tests that assessed memory, learning, attention, visuospatial functioning, processing speed, and verbal fluency. Multilevel-modeling was used to examine the longitudinal association between cognition, age, and depressive symptoms. Results Our results indicated a significant three-way interaction (age X occasion X depressive symptoms) predicting language and working memory/attention performance. More specifically, detrimental associations of depressive symptoms on cognitive decline in these domains were more pronounced among older adults. Conclusions Our findings support that older PD patients with comorbid depressive symptoms experience greater cognitive decline compared to their younger counterparts. Findings suggest that older individuals with PD may be more vulnerable to neurotoxic effects of depression (e.g., neuroinflammation, HPA axis disruption), and better management of depression could potentially reduce cognitive decline and dementia risk.
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Affiliation(s)
- Lea Hemphill
- California State University San Bernardino, San Bernardino, CA, USA
| | - Yenny Valenzuela
- California State University San Bernardino, San Bernardino, CA, USA
| | - Kenya Luna
- California State University San Bernardino, San Bernardino, CA, USA
| | - Sarah M. Szymkowicz
- Department of Psychiatry & Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jacob D. Jones
- California State University San Bernardino, San Bernardino, CA, USA
- Corresponding author.
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González Hernández A, Rodríguez Quintero AM, Bonilla Santos J. [Depression and its relationship with mild cognitive impairment and Alzheimer disease: A review study]. Rev Esp Geriatr Gerontol 2021; 57:118-128. [PMID: 34848100 DOI: 10.1016/j.regg.2021.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 09/02/2021] [Accepted: 10/11/2021] [Indexed: 10/19/2022]
Abstract
The objective of the present study was to determine whether depression precedes Mild cognitive impairment (MCI) as a risk factor or as a predictor in Alzheimer's disease (AD). A systematic review of observational studies (cross-sectional and cohort or follow-up) was carried out using the PRISMA search algorithm, for clinical markers in MCI and AD, in the Science Direct, Springer, Scopus and Proquest databases. The study eligibility criteria included inclusion criteria: of types of documents, articles of primary studies, type of source scientific journals, published in the English language, from January 2010 to April 2020, in patients with MCI and AD and in the group of age included in people with a minimum age range of 45years. Exclusion criteria were: publications older than 10years because the aim of the article was to explore recent studies, secondary research studies, type of report document, languages other than English. 3385 articles were identified, of which 30 articles were finally selected. It was found that there is an association between depression and AD, but properly as a risk factor but not, as a predictor or clinical marker of the development of AD. The degree of association is greater when they present depressive symptoms and simultaneously report subjective memory complaints or the presence of MCI.
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Affiliation(s)
- Alfredis González Hernández
- Psicología Neurociencia Cognitiva Aplicada, Programa de Psicología, Universidad Surcolombiana, Neiva, Colombia
| | | | - Jasmín Bonilla Santos
- Psicología Neurociencia Cognitiva Aplicada, Universidad Cooperativa de Colombia, Neiva, Colombia.
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Burenkova OV, Naumova OY, Grigorenko EL. Stress in the onset and aggravation of learning disabilities. DEVELOPMENTAL REVIEW 2021; 61. [PMID: 34219858 DOI: 10.1016/j.dr.2021.100968] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Despite substantial grounds for such research, the role of chronic exposure to stressors in the onset and aggravation of learning disabilities (LDs) is largely unexplored. In this review, we first consider the hormonal, (epi)genetic, and neurobiological mechanisms that might underlie the impact of adverse childhood experiences, a form of chronic stressors, on the onset of LDs. We then found that stress factors combined with feelings of inferiority, low self-esteem, and peer victimization could potentially further aggravate academic failures in children with LDs. Since effective evidence-based interventions for reducing chronic stress in children with LDs could improve their academic performance, consideration of the role of exposure to stressors in children with LDs has both theoretical and practical importance, especially when delivered in combination with academic interventions.
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Affiliation(s)
- Olga V Burenkova
- Department of Psychology, University of Houston, Houston, Texas, United States of America.,Department of Psychology, Saint-Petersburg State University, Saint Petersburg, Russian Federation
| | - Oksana Yu Naumova
- Department of Psychology, University of Houston, Houston, Texas, United States of America.,Department of Psychology, Saint-Petersburg State University, Saint Petersburg, Russian Federation.,Human Genetics Laboratory, Vavilov Institute of General Genetics RAS, Moscow, Russian Federation
| | - Elena L Grigorenko
- Department of Psychology, University of Houston, Houston, Texas, United States of America.,Department of Psychology, Saint-Petersburg State University, Saint Petersburg, Russian Federation.,Baylor College of Medicine, Houston, Texas, United States of America
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Interactive effects of elevated homocysteine and late-life depression on cognitive impairment. J Affect Disord 2020; 277:212-217. [PMID: 32829197 DOI: 10.1016/j.jad.2020.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/02/2020] [Accepted: 08/10/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND Both an elevated homocysteine (Hcy) level and depression are risk factors for cognitive impairment in the general population, but no study has analyzed whether the coexistence of an elevated Hcy level and late-life depression (LLD) is associated with worse cognitive performance. OBJECTIVE We aimed to investigate the relationship between Hcy levels and cognitive function in individuals with LLD and whether the coexistence of an elevated Hcy level and LLD is associated with worse cognitive performance. METHODS A total of 113 LLD patients and 89 normal controls underwent a standardized clinical interview and comprehensive neuropsychological assessment battery. Plasma concentrations of Hcy were detected. Factorial analyses were performed to examine the impact of the coexistence of an elevated Hcy level and LLD on cognitive performance. RESULTS Plasma Hcy levels in patients with LLD were significantly higher than that in normal controls. Only for LLD patients, Hcy level was negatively correlated with global cognition, executive function, attention, and visual space. The factorial analysis showed that there was a significant interactive effect of Hcy level (normal and elevated levels) and LLD (with and without LLD) on global cognition. In post hoc comparisons, the elderly individuals with both elevated Hcy levels and LLD tended to have the worst global cognitive function compared with those with LLD or elevated Hcy levels alone. CONCLUSIONS The coexistence of an elevated Hcy level and LLD was associated with worse cognitive performance. Early intervention should be initiated to protect cognition in LLD patients with elevated Hcy levels.
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Byrne J, Ludington‐Hoe SM, Voss JG. Occupational Heat Stress, Thermal Comfort, and Cognitive Performance in the OR: An Integrative Review. AORN J 2020; 111:536-545. [DOI: 10.1002/aorn.13009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Is Raising Your Grandchild Bad for Your Health? The Association Between Custodial Grandparent Status and Health Biomarkers in Taiwanese Grandparents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17051753. [PMID: 32156094 PMCID: PMC7084530 DOI: 10.3390/ijerph17051753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/02/2020] [Accepted: 03/05/2020] [Indexed: 12/26/2022]
Abstract
Data from two waves of the Social Environment and Biomarkers of Aging Study in Taiwan were analyzed to determine the effects of custodial grandparenting on health in a longitudinal sample. Self-reported measures on respondents' perception of their health, six health biomarkers, the presence of twelve diseases, and a measure of stress were included. Custodial Grandparents (CGPs) were significantly more likely to report worse health than their peers. However, there were no significant differences in biomarkers, and CGPs were only significantly different from non-custodial grandparents (nCGPs) regarding lower respiratory disease. Results suggest that CGPs do not have significantly worse health than nCGPs, but report feeling less healthy. This disparity is suspected to be due to energy levels or stress sources not assessed by the variables in the original study. These results and their implications based upon the stress-coping model elucidate the need to design interventions that incorporate the East Asian cultural values and practices in order to promote better health outcomes for CGP populations overall.
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The internal link of serum steroid hormones levels in insomnia, depression, and Alzheimer's disease rats: Is there an effective way to distinguish among these three diseases based on potential biomarkers? J Sep Sci 2019; 42:1833-1841. [DOI: 10.1002/jssc.201801298] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/20/2019] [Accepted: 03/02/2019] [Indexed: 11/07/2022]
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